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klasskru [66]
2 years ago
14

If I have 2.90 L of gas at a pressure of 5.00 atm and a temperature of 55.0 C what will be the temperature of the gas if I decre

ase the volume of the gas to 2.40 L and decrease the pressure to 3.00 atm?
Chemistry
1 answer:
Alex777 [14]2 years ago
4 0

Answer:

Vince Kutcher's I uh cc hgv gun cc GB cc by gabriel

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Molecules have ionization energies, just like atoms do. The ionization energy for molecular oxygen, for example, is 1314 kJ/mol.
taurus [48]

Answer:

91.1835 nm

Explanation:

Given that the ionization energy of the oxygen molecule = 1314 kJ/mol

It means that

1 mole of oxygen molecules can be ionized by the energy = 1314 kJ = 1314000 J

1 mole of molecules contains 6.022 × 10²³ atoms

So,

6.022 × 10²³ atoms of oxygen molecules can be ionized by the energy = 1314000 J

1 atom require \frac{1314000}{6.022\times 10^{23}}\ J of energy

Energy = 2.18\times 10^{-18}\ J

Also

E=\frac {h\times c}{\lambda}

Where,  

h is Plank's constant having value 6.626\times 10^{-34}\ Js

c is the speed of light having value 3\times 10^8\ m/s

\lambda is the wavelength

So,

\lambda=\frac {h\times c}{E}

\lambda=\frac{6.626\times 10^{-34}\times 3\times 10^8}{2.18\times 10^{-18}}\ m

\lambda=91.1835\times 10^{-9}}\ m

Also,

1\ nm=10^{-9}}\ m

So, wavelength = 91.1835 nm

6 0
3 years ago
How are problems with global warming connected to problems with air pollution?
olga55 [171]

Answer:

Changes in climate can result in impacts to local air quality. Atmospheric warming associated with climate change has the potential to increase ground-level ozone in many regions, which may present challenges for compliance with the ozone standards in the future.

4 0
3 years ago
Read 2 more answers
Difference between rapid combustion and spontaneous combustion.
statuscvo [17]

Answer: The difference between rapid combustion and spontaneous combustion...

Explanation:

Rapid combustion is a form of combustion, otherwise known as a fire, in which large amounts of heat and light energy are released, which often results in a flame.Whereas spontaneous combustion is the ignition of organic matter (e.g. hay or coal) without apparent cause, typically through heat generated internally by rapid oxidation.

6 0
2 years ago
Alice and Bob are experimenting with two moles of neon, a monatomic gas, that starts out at conditions of standard temperature a
Archy [21]

Answer:

29273.178 joules have been added to the gas for the entire process.

Explanation:

The specific heats of monoatomic gases, measured in joules per mol-Kelvin, are represented by the following expressions:

Isochoric (Constant volume)

c_{v} = \frac{3}{2}\cdot R_{u} (1)

Isobaric (Constant pressure)

c_{p} = \frac{5}{2}\cdot R_{u} (2)

Where R_{u} is the ideal gas constant, measured in pascal-cubic meters per mol-Kelvin.

Under the assumption of ideal gas, we notice the following relationships:

1) Temperature is directly proportional to pressure.

2) Temperature is directly proportional to volume.

Now we proceed to find all required temperatures below:

(i) <em>Alice heats the gas at constant volume until its pressure is doubled</em>:

\frac{T_{2}}{T_{1}} = \frac{P_{2}}{P_{1}} (3)

(\frac{P_{2}}{P_{1}} = 2, T_{1} = 273.15\,K)

T_{2} = \frac{P_{2}}{P_{1}} \times T_{1}

T_{2} = 2\times 273.15\,K

T_{2} = 546.3\,K

(ii) <em>Bob further heats the gas at constant pressure until its volume is doubled</em>:

\frac{T_{3}}{T_{2}} =\frac{V_{3}}{V_{2}} (4)

(\frac{V_{3}}{V_{2}} = 2, T_{2} = 546.3\,K)

T_{3} = \frac{V_{3}}{V_{2}}\times T_{2}

T_{3} = 2\times 546.3\,K

T_{3} = 1092.6\,K

Finally, the heat added to the gas (Q), measured in joules, for the entire process is:

Q = n\cdot [c_{v}\cdot (T_{2}-T_{1})+c_{p}\cdot (T_{3}-T_{2})] (5)

If we know that R_{u} = 8.314\,\frac{Pa\cdot m^{3}}{mol\cdot K}, n = 2\,mol, T_{1} = 273.15\,K, T_{2} = 546.3\,K and T_{3} = 1092.6\,K, the heat added to the gas for the entire process is:

c_{v} = \frac{3}{2}\cdot \left(8.314\,\frac{Pa\cdot m^{3}}{mol\cdot K} \right)

c_{v} = 12.471\,\frac{J}{mol\cdot K}

c_{p} = \frac{5}{2}\cdot \left(8.314\,\frac{Pa\cdot m^{3}}{mol\cdot K} \right)

c_{p} = 20.785\,\frac{J}{mol\cdot K}

Q = (2\,mol)\cdot \left[\left(12.471\,\frac{J}{mol\cdot K} \right)\cdot (536.3\,K-273.15\,K)+\left(20.785\,\frac{J}{mol\cdot K} \right)\cdot (1092.6\,K-546.3\,K )\right]

Q = 29273.178\,J

29273.178 joules have been added to the gas for the entire process.

6 0
2 years ago
Unknown A melts at 113- 114oC. Known compounds 3-Nitroaniline and 4-Nitrophenol both melt at 112-114 oC. If A is mixed with 3-Ni
Naya [18.7K]

Answer:

C) Both

Explanation:

Whenever we mix any pure form of a compound with some other form of a compound which is not in the other standard pure state, this results in the melting point of mixture to get dispersed and it becomes broad form.

Thus, when a known compound of 3-Nitroaniline mixes with both 3-Nitroaniline and 4-Nitrophenol, the melting point of the compound becomes depressed and board.

Thus the correct option is (C).

4 0
2 years ago
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